title: Soil characteristics as factors governing the existence, recycling and persistence of Bacillus thuringiensis in Egypt.
mesh_terms: D000818:Animals; D001413:Bacillus thuringiensis / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism; D003300:Copper / Q000378:metabolism; D003465:Culex / Q000382:microbiology; D004534:Egypt; D007928:Lethal Dose 50; D010572:Pest Control, Biological / Q000379:methods*; D012044:Regression Analysis; D012988:Soil Microbiology; D018411:Spodoptera / Q000382:microbiology
chemical_list: D003300:Copper